Taylor Berry pulls out a heart-shaped tin full of homemade fudge made by his mother, Tamara Berry, that they plan to give to one of their favorite nurses Feb. 10 at Texas Children's Hospital in Houston.

Michael Zamora

Taylor Berry puts his feet up on the chair and in his mom, Tamara Berry's lap Feb. 10 as they sit in the waiting room at Texas Children's Hospital in Houston.

Michael Zamora

Taylor Berry rides in the car back to his apartment Feb. 10 after his appointment at Texas Children's Hospital in Houston.

Michael Zamora

Taylor Berry rides the elevator down to the food court Feb. 10 at Texas Children's Hospital in Houston.

Dr. Jeff Dreyer, cardiac transplantation medical director, examines Taylor Berry, 15, earlier this month at Texas Children's Hospital in Houston. "If another heart isn't in God's plan for me," Taylor said, "I pray he gives it to another kid so they can live a while like I did."

Taylor Berry texts on his phone as he waits in the food court line at Texas Children's Hospital in Houston.

Michael Zamora

Taylor Berry, 15, lifts the blinds in his hospital exam room Feb. 10 as he and his mother, Tamara Berry, look out the window over the Houston Medical Center during their visit to Texas Children's Hospital.